2. Two regression models estimating the marks scored by students in the final year of their Masters Program are detailed below: E(Marks in Final Exam) = 69.22 +23.3(Attendance Rate) + 14.6(PE) R= 0.57 (Model 1) (0.10) (0.05) E(Marks in Final Exam) = 63.82 + 20.2 (Attendance Rate) + 12.6(PE) - 14.8(EE) (0.00) (0.05) (0.10) (0.05) R= 0.66 (Model 2) (Figures in brackets represent P values). Attendance rate refers to the percentage of classes attended by a student in the final year. PE and EE refer to the marks obtained in the previous year and the marks obtained in the entrance exam for admission into the course respectively. Interpret the signs and significance of all the independent variables in Model 2. What information can you derive from the R? values of both the models? Can the R'of Model 1 be greater than that of Model 2? Why or Why not? Use a F test to decide which model is preferable. Number of observations is 400. (Conduct the required tests at a 5% level of significance).

2. Two regression models estimating the marks scored by students in the final year of their Masters Program are detailed below: E(Marks in Final Exam) = 69.22 +23.3(Attendance Rate) + 14.6(PE) R= 0.57 (Model 1) (0.10) (0.05) E(Marks in Final Exam) = 63.82 + 20.2 (Attendance Rate) + 12.6(PE) - 14.8(EE) (0.00) (0.05) (0.10) (0.05) R= 0.66 (Model 2) (Figures in brackets represent P values). Attendance rate refers to the percentage of classes attended by a student in the final year. PE and EE refer to the marks obtained in the previous year and the marks obtained in the entrance exam for admission into the course respectively. Interpret the signs and significance of all the independent variables in Model 2. What information can you derive from the R? values of both the models? Can the R'of Model 1 be greater than that of Model 2? Why or Why not? Use a F test to decide which model is preferable. Number of observations is 400. (Conduct the required tests at a 5% level of significance).

College Algebra

7th Edition

ISBN:9781305115545

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter1: Equations And Graphs

Section: Chapter Questions

Problem 10T: Olympic Pole Vault The graph in Figure 7 indicates that in recent years the winning Olympic men’s...

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